Shoe upper



FIG. 1 is a front perspective view of a shoe upper showing my new design;

FIG. 2 is a lateral side view thereof;

FIG. 3 is a medial side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a top view thereof.

The broken line showing of the bottom edge of the shoe upper is for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a shoe upper, as shown and described. 